rgw: segment fault when shard id out of range

Fixes: http://tracker.ceph.com/issues/19732 Signed-off-by: redickwang <redickwang@tencent.com>
smithfarm · May 19, 2017 · ff4c40f · ff4c40f
1 parent 572281a
commit ff4c40f
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/rgw/rgw_bucket.cc b/src/rgw/rgw_bucket.cc
@@ -1730,6 +1730,8 @@ int RGWDataChangesLog::list_entries(int shard, const real_time& start_time, cons
 				    const string& marker,
 				    string *out_marker,
 				    bool *truncated) {
+  if (shard >= num_shards)
+    return -EINVAL;
 
   list<cls_log_entry> log_entries;